中文摘要：

城市排水是智慧水务建设的一部分,而立交桥下积水问题是城区道路积水问题中的一个重点,因此解决好立交桥下的积水问题尤为重要。以SWMM模型为基础,结合GIS和SCADA建立立交桥积水模型,对杭州市滨江区一座铁路涵洞积水进行模拟,计算不同降雨频率下,排水设施运行和路面积水状况。该研究可作为城区暴雨积水决策支持系统的一部分,以供防汛指挥和工程改造应用。

英文摘要：

Urban drainage is part of wisdom construction of water,and the water logging under the flyover is the focus of urban road.It＇s of great urgency to solve it.On the basis of SWMM model,the paper simulate the railway culvert in Bin Jiang district of Hang Zhou,conbing with GIS and SCADA system to calculate the rainfall frequency,drainage facilities and the surface water logging on the surface.The study could be used to function as a part of urban water logging policies,and can be applied to floods control and project enginerring.